<!DOCTYPE html>
<html>
<head>
<style>
html, body {
    margin: 0;
    font-size: 0;
    line-height: 0;
}
.nav-button-outer {
    display: inline-block;
}
.nav-down-arrow {
    display: inline-block;
    border-style: solid;
    border-color: black;
    border-width: 10px 200px 0 0;
}
</style>
</head>

<body>
    <a class="nav-button-outer"><span class="nav-down-arrow"></span></a>
</body>
</html>
